Remote Cloning a PDB with Encrypted Data
This post list the steps for remote cloning a PDB that has encrypted data. What's difference in this case, to that of a remote cloning a PDB without the use of 12c TDE is the use of the encryption key....
View ArticleUsing Oracle Connection Pools with ActiveMQ
Following bean entries could be used for creating pooled JDBC connections from an activemq conflagration.To use Oracle data source add the following to activemq.xml.<bean id="oracle-ds"...
View ArticleJDBC Client Failover in Data Guard Configuration with PDBs
This post gives the highlights of setting up JDBC client failover in a data guard configuration with PDBs. For comprehensive set of steps refer the following white papers for 12c and for 11g. The post...
View ArticleRAC on Docker - Single Host Setup
Similar to single instance Oracle DB on docker, RAC too could be deployed on docker. However, unlike single instance version the current RAC on docker is only for testing and development work only....
View ArticleStart of Service Fails with ORA-16000 on Physical Standby Open for Read Only
Start of database service failed with ora-16000 on physical standby where both CDB and PDB are open read only mode. The DG setup is same one mentioned in earlier post Data Guard on 12.2 CDB.SQL>...
View ArticleAdding a New Physical Standby to Exiting Data Guard Setup
This post shows the steps for adding a physical standby to an existing data guard setup. The exiting data guard setup consists of a single primary and single physical standby with Oracle restart. To...
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Upgrading Oracle Restart from 12.2.0.1 to 18c
This post lists the steps for upgrading an Oracle restart environment (Single instance CDB on ASM) from 12.2.0.1. to 18.0.0.0 (production version 18.3.0.0). The 12.2 setup is on RHEL 7. The OS and...
View ArticleRemoving a Standby Database From a Data Guard Configuration
The post shows the steps for removing a standby database from a data guard configuration and make it available for read/write access. The data guard configuration consists of two standby...
View ArticleORA-01555: snapshot too old and Index Corruption
ORA-1555 in most cases is associated with an undersized undo tablespace (when Automatic Undo Management - AUM is used). Lack of space in undo tablespace result in unexpired undo information to be...
View ArticleDG Broker Continue With Status "ROLLING DATABASE MAINTENANCE IN PROGRESS"...
With Oracle 12c a new PL/SQL package called DBMS_ROLLING was provided which greatly automate the rolling upgrade of databases with minimum down time and maximum protection. Refer MOS 2086512.1 and the...
View ArticleORA-28086: The data redaction policy expression has an error When Cursor...
Adding a policy using dbms_redact on 11.2.0.4 fails when the cursor sharing is force. The latest PSU available for the DB version has already been applied to the DB. But this didn't resolve the issue....
View ArticleConverting a Physical Standby to a Snapshot Standby
Converting a physical standby to a snapshot standby allows it to be open for read/write access. This could enable various types of testing to be carried out on the snapshot standby. This post list...
View ArticleUpgrading Oracle Restart Databases From 12.2 to 18c Using DBMS_ROLLING
DBMS_ROLLING allows upgrade of databases in a data guard configuration with minimum down time. In short the dbms_rolling upgrade process divide the databases in the data guard configuration in to...
View ArticleUCP Connections Fail to Connect to DB in Mount Mode With ORA-12504...
Trying to connect to a database (non-CDB, CDB or PDB) in mount mode as sysdba using a UCP JDBC connection fails withException in thread "main" java.sql.SQLException: Exception occurred while getting...
View ArticleVerifying Redo Transport Compression in 11.2, 12.1 and 12.2 Data Guard...
Redo shipped to standby could be compressed for transport in two ways. One is external to the database and uses SSH tunnelling. Other method is enabling compression for the remote log archive...
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DBCA Templates and PDBs - 12.1, 12.2 and 18c
This post looks the option of creating a database using a template, where the template was created from a CDB containing a PDB. During the testing it was observed that 12.1, 12.2 and 18c behaves...
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Data Guard With OCI PaaS DB (DBaaS) Primary and Standby on IaaS
Oracle Cloud Infrastructure (OCI) platform as a service (PaaS) DB offering (DBaaS) currently does not provide data guard capability for DBs created with VM shape types. This post shows how to create a...
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AWR Reports on Standby when Active Data Guard is Used
Oracle introduced Remote Management Framework (RMF) in 12.2 which allows creating AWR reports on standby database when active data guard is in use. This post list the steps for setting up the RMF so...
View ArticleUdev Rules for AWS EBS Volumes
AWS EBS volumes could be used as ASM disks. When ASMLib or AFD is not used, udev rules must be used to set the correct permissions on the EBS block volumes. It's generally good practice to use a unique...
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Data Guard on OCI PaaS DB
Oracle has introduced the data guard capability for DBs created with VM shape types. There's an earlier post which shows how to setup a data guard configuration with PaaS DB primary and standby created...
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